Sensors, Vol. 19, Pages 2051: Modeling and Experimental Testing of an Unmanned Surface Vehicle with Rudderless Double Thrusters

Sensors, Vol. 19, Pages 2051: Modeling and Experimental Testing of an Unmanned Surface Vehicle with Rudderless Double Thrusters Sensors doi: 10.3390/s19092051 Authors: Chunyue Li Jiajia Jiang Fajie Duan Wei Liu Xianquan Wang Lingran Bu Zhongbo Sun Guoliang Yang Motion control of unmanned surface vehicles (USVs) is a crucial issue in sailing performance and navigation costs. The actuators of USVs currently available are mostly a combination of thrusters and rudders. The modeling for USVs with rudderless double thrusters is rarely studied. In this paper, the three degrees of freedom (DOFs) dynamic model and propeller thrust model of this kind of USV were derived and combined. The unknown parameters of the propeller thrust model were reduced from six to two. In the three-DOF model, the propulsion of the USV was completely provided by the resultant force generated by double thrusters and the rotational moment was related to the differential thrust. It combined the propeller thrust model to represent the thrust in more detail. We performed a series of tests for a 1.5 m long, 50 kg USV, in order to obtain the model parameters through system identification. Then, the accuracy of the modeling and identification results was verified by experimental testing. Finally, based on the established model and the proportional derivative+line of sight (PD+LOS) control algorithm, the path-following control of the USV was achieved through simulations and experiments. All the...
Source: Sensors - Category: Biotechnology Authors: Tags: Article Source Type: research